Final answer:
The safest practice when changing lanes is not to assume the other driver will make space for you, but rather to indicate your intent, check mirrors, and the blind spot before proceeding cautiously.
Step-by-step explanation:
When changing lanes, it is important to follow safe driving practices to ensure the safety of yourself and other road users. The correct answer to the question is c) Not assume the other driver will make space for you to return to your lane. Instead, a driver should always use their turn signals to indicate their intention to change lanes, check their mirrors, and perform a shoulder check to ensure that the lane they wish to move into is clear of other vehicles. This ensures that if there is a vehicle in your blind spot or traveling at a speed that could interfere with a safe lane change, you will be aware of it and can wait until it is safe to proceed. Speeding up to get ahead of the traffic or assuming another driver will make space can lead to dangerous situations and potential accidents.